Write a report that answers the following questions and meet the list of requirements that follows. Questions:

Write the following in set roster notation:

The set p of natural numbers between 19 and 23, including 19 and 23

let ?= {a, b, c, d, e, f, g}, a= {a, b, c}, b= {c, d, e} find (a?b').

let ?={a, b, c, d, e, f, g}, a={a, b, c}, b={c, d,e, f} find b-a'.

let ?= {1, 2, 3, 4, 5, 6, 7}, a= {1, 2, 3, 4}, b= {2, 3, 4, 5, 6}, c= {4, 5, 6, 7} find (b?a)'?c

let ?= {x: x?n, x is odd, and x < 9} find n(?).